| 西南丘陵山区农村宅基地复垦景观格局和生态效应研究 |
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| 引用本文： | 罗友进,余端,韩国辉,王武,胡佳羽,谢永红,廖敦秀.西南丘陵山区农村宅基地复垦景观格局和生态效应研究[J].农业环境科学学报,2015,32(5):429-435. |
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| 作者姓名： | 罗友进 余端 韩国辉 王武 胡佳羽 谢永红 廖敦秀 |
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| 作者单位： | 重庆市农业科学院果树研究所, 重庆 401329;中国农业科学院农业环境与可持续发展研究所, 北京 100081,重庆市农业科学院农业资源与环境研究所, 重庆 401329,重庆市农业科学院果树研究所, 重庆 401329,重庆市农业科学院果树研究所, 重庆 401329,重庆市农业科学院果树研究所, 重庆 401329,重庆市农业科学院果树研究所, 重庆 401329,重庆市农业科学院农业资源与环境研究所, 重庆 401329 |
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| 基金项目： | 农业部农业环境重点实验室开放基金;国家科技支撑计划课题(2013BAJ10B07-04B) |
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| 摘 要： | 为了探讨西南丘陵山区农村宅基地复垦对区域景观格局和生态效应的影响,应用ArcGIS和景观生态学方法,以重庆市合川区钱塘镇大柱村农村宅基地复垦区为研究对象,分析了该区在宅基地复垦前后的土地利用结构和景观格局变化。参照矿区复垦景观评价方法,结合西南丘陵山区农村宅基地复垦区的实际情况,建立了评价指标体系,同时采用层次分析法对各评价因子赋以权重,之后对宅基地复垦区进行了生态评价。结果表明,宅基地复垦对该区域生态环境起到一定的改善作用,大部分评价因子呈现出正效应,如廊道长度、生态服务价值和廊道密度等,但优势度指数和分维数则呈现出负效应。总体而言,农村宅基地复垦使得农村分散宅基地得到集中,节约了农村宅基地的占地面积,同时也改善了区域的生态环境,有利于新农村和农村生态文明的建设。
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| 关 键 词： | 宅基地复垦 土地利用 景观格局 生态效应 |
| 收稿时间： | 2/5/2015 12:00:00 AM |
Evaluation of Landscape Pattern Changes and Ecological Effects in Land Reclamation Project of Homestead in Hilly and Mountainous Regions of Southwest China |
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| LUO You-jin,YU Duan,HAN Guo-hui,WANG Wu,HU Jia-yu,XIE Yong-hong and LIAO Dun-xiu.Evaluation of Landscape Pattern Changes and Ecological Effects in Land Reclamation Project of Homestead in Hilly and Mountainous Regions of Southwest China[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2015,32(5):429-435. |
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| Authors: | LUO You-jin YU Duan HAN Guo-hui WANG Wu HU Jia-yu XIE Yong-hong and LIAO Dun-xiu |
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| Institution: | Fruit Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing 401329, China;Institute of Environment and Sustainable Development in Agriculture, CAAS, Beijing 100810, China,Institute of Environment and Resources in Agriculture, Chongqing Academy of Agricultural Sciences, Chongqing 401329, China,Fruit Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing 401329, China,Fruit Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing 401329, China,Fruit Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing 401329, China,Fruit Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing 401329, China and Institute of Environment and Resources in Agriculture, Chongqing Academy of Agricultural Sciences, Chongqing 401329, China |
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| Abstract: | In order to research the effects of landscape pattern and ecological effects caused by homestead land reclamation in hilly and mountainous regions of southwest China, taking land reclamation project of homestead in Dazhu Village, Qiantang Town, Hechuan District of Chongqing City as an example, the land use structure and landscape pattern changes were studied based on ArcGIS and methods of landscape ecology. The ecological effects were evaluated with an indices system which was constructed with optimized landscape pattern and the weight assigned for each index by AHP (analytic hierarchy process) method. The results showed that the ecological environment was improved as a result of homestead land reclamation project. Almost of the evaluation index, such as length and density of corridor and ecological services value, had positive effects on ecosystem. But the dominance index and fractal dimension index had negative effects. In conclusion, the rural scattered residential areas were concentrated to some extent by implement of the homestead land reclamation project, which saved the rural residents living area to provide the land utilization index for urban and rural construction and conducive to the development of new rural construction and rural ecological civilization construction. |
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| Keywords: | land reclamation of homestead land use landscape ecological effects |
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